Fix enumItem labels (microsoft#180889)

`javascript.preferences.importModuleSpecifierEnding` and `typescript.preferences.importModuleSpecifierEnding` got out of sync here

Author: mjbvz

extensions/typescript-language-features/package.json

@@ -920,9 +920,9 @@
             "js"
           ],
           "enumItemLabels": [
-            "%typescript.preferences.importModuleSpecifierEnding.label.auto%",
-            "%typescript.preferences.importModuleSpecifierEnding.label.minimal%",
-            "%typescript.preferences.importModuleSpecifierEnding.label.index%",
+            null,
+            null,
+            null,
             "%typescript.preferences.importModuleSpecifierEnding.label.js%"
           ],
           "markdownEnumDescriptions": [